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(No Model.) 7 2 Sheets-Sheet 1.

A. VOELKLE.

STREET SWEEPING MACHINE.

Patented Sept. 13, 1892. FILE].

Vi/TTWEESES.

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(No Model.) 2 Sheets-Sheet 2.

- A. VOELKLE.

STREET SWEEPING MACHINE. No. 482,663. Patented Sept. 13, 1892.

III/IA WITNESSES INVENT'UR NITED STATES ANDREAS VOELKLE,

OF NEIV YORK, N. Y.

STREET-SWEEPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 482,663, datedSeptember 13, 1892. Application filed December 18, 1891. Serial No.115,475. (No model.)

To all whom it may concern.-

.Be it known that I, ANDREAS VOELKLE, a citizen of the United States,and a resident of New York, in the county of New York and State of NewYork, haveinvented certain new and useful Improvements inStreet-Sweeping Machines, of which the following is a specification.

This invention relates to improvements in that class ofsweeping-machines in which the sweepings are swept into theperipheralpockets on a rotating drum by a rotating brush and delivered from saidpocketsinto acollecting-trough, from which they are discharged at properintervals, as more fully hereinafter specified; andit has for itsobjects toimprove the construction of the drum and provideimprovedmechanism for dumping the sweepings from the collecting-trough, as morefully hereinafter specified.

In the annexed drawings, Figure l represents a sectional side elevationof the machine with my improvements. Fig. 2 is a top view of the same.Fig. 3 is a lateral vertical section of the same at the collecting-boxof the sweepings. Fig. 4 is a detached longitudinal section of the huband pawl of the drivingwheel of the same, shown on a larger scale. Fig.5 is a lateral section of the same at the line 00 no.

The letter of reference A represents the wagon-frame, and B B thedriving-Wheels, and O is the front truck of the machine.

D is the drivers seat upon the forward part of the frame, and Erepresents the wagon-axle or driving-wheel shaft, upon which said wheelscan revolve loosely, when the machine is being driven without sweeping;but for sweeping said axle is connected by means of a pawl F, engaginginto a ratchet-wheel G, fixed or cast on the hub of the wheel. Both endsof the axle may have a pawl attached and both hubs of the wheels beprovided with aratchet each. To the under side of each side bar of theframe is attached a bearing for the drivingshaft or axle E. to revolvetherein whenever the wheel or Wheels are connected by the pawls rigidwith it, and upon the said shaft between the side bars of the frame ismounted and solidly fixed a drum H to revolve with the shaft. Said drumhas a flange I on each end close to the side bar of the frame A, and

between its flanges I I are made the equallydistributed longitudinalgrooved pockets J J upon its periphery, in which the sweepings arereceived from the rotary brush K of the machine, located at the rear ofsaid drum and revolving as shown by the arrow, and closely forward ofsaid drum is employed laterally a dirt-collecting box or trough L, intowhich the pockets J empty their sweepings. All the portion over thebrush and over the top of the drum H, the frame A, the drivingwheels',and the trough L are covered by a suitable cloth cover M, stretched oversuitable cross-rods a; and side braces b.

The ratchet-wheel G aforesaid of the driving-wheel is on the outer endof the hub, and the pawl F, engaging with it, is pivoted to a flangednut N, fitted over the left-hand threaded end of the axle E, so that bythe forward motion of the machine said nut is made and kept rigid withthe axle. The pawl F has a projecting handle 0 for disengaging, and aspring at is engaged to press the pawl into the ratchet bearing upon therear projection e on the rear part of the pawl; but by disengaging thepawl said spring bears on the secondary rear projection f and the pawlis held disengaged from the ratchet.

The motion from the driving-wheels is transmitted to the brush by meansof the gearwheels 0 O, secured upon the axle E at the rear of each wheel13. Said wheels 0 0 engage the pinion-gears g, and to each gear 9 isattached a chain-wheel h, which both are revolving upon a suitable studt, projecting from the vertical stud-plate j, bolted to the relativeside bar of the frame A.

The rotary brush has a metal shaft held in a bearing 7e near each of itsends and a chainwheel Z on each extreme end. Each bearing is has a barm, firmly attached, of which the loose end is pivoted to the plate j ofthe stud z. The chain-wheels Zare connected with the chain-wheels hbymeans of chains to revolve the brush. The bearings 70 of the plate m, being pivoted on the plates j, allow the brush to rise and fall and bearupon the street-surface and is entirely raised by the driver from thestreet when not in use.

The driver has near at hand on the side of his seat a hand-lever 'n, andat the top of the rear ends of the frameA and over each bearing is ofthe brush is employed a one-armed lever 0, the loose end of which has arope or chain g attached to the respective bearing below. Both levers 0are secured upon a lateral fulcrum-arbor 1", having a bearin g on eachend secured to the top of the frame A. The handlevernis connected withthelever 0 at its rear by means of the rod 19, and said hand-leverengages with the teeth of a ratchet-bar s to hold the lever to itsposition, so that by pushing the hand-lever forward the brush is raisedand held up from the street and by releasing the lever the brush bearsupon the street.

The pockets J J of the drum H are arranged tangentially, as shown, todeliver the sweepings readily into the trough L, which is arrangedlateral and with its top below the level of the center of the drum. Themouth of each pocket is contracted at J J on each end toward theperiphery of the drum, as shown. Each side bar of the frameA has twouprights Z, between which the trough L is arranged, and the uprightsl ofone side bar are connected at their bottom ends with the oppositeuprights 011 the other side bar by means of the cross-pieces P. Thetrough L has one closed large end or rear part. The other end or mouth Qis made smaller and has a loose door R hinged on its top end to the topor sides of the trough. The rear part of the trough rests upon a flatspring 25, attached to cross-pieces P. The mouth Q of the same restsupon a roller a between the uprights Z. To the bottom at the rear partof the trough is attached a crank-arbor S by means of the staples u, inwhich said arbor is made to turn, and has formed on each end a bentportion for a crank-trunnion w. Said arbor is arranged across the bottomof the trough in an inclined position and its crank-trunnions are heldin bearings u, secured in the opposite cross-pieces P, as shown.

In bearings at the upper portions of the uprightsl above the mouth Q isarranged a longitudinal horizontal winding-arbor T, with a pulley z, anda rope or chain ,2, attached with one end to the rear of the trough L,connects with the other end with the pulley z to wind thereupon. Theforward part of the arbor T extends along the side of the seat D andterminates with a hand-crank to wind up the rope z, by which means thetrough L is raised on its rear end and is pulled outward and forwardaway from the drum, and also with its mouth Q to project more outwardfrom the side of the machine, as shown in dotted lines in Fig. 3. Saidmotion of the trough is guided mostly by the arbor S.

The door R has pivoted on its lower corner a latch-hook U, which engagesover a stud V on the bottom corner of the mouth Q when the door isclosed to hold it shut. Said hook V has an arm X, to which the rope Y isattached with one end, While the other end is secured to a fixed eye orstud Z. By this means after the desired amount of sweepings arecollected in the trough L the driver with the hand-crank winds up therope 2, thereby raising the rear end and moving outward and forward thetrough L for discharge of the sweepings. Simultaneously by the rope Ythe latch-hook is disengaged and the door R is opened for discharge, andas soon as the driver releases the winding-arbor the trough L drops backin its place, the door R closes, and automatically the latch-hook locksthe door. At the time of making a discharge of the sweepings the machineis stopped, so that the discharge is not distributed on the street andrequiring to be gathered, but that it is delivered in one heap ready tobe loaded into the dirt-cart. The pawls F are arranged in front of thedriving-wheels for better access than it arranged behind the same, asheretofore.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination, in a street-sweeping machine, of the rotating drumhaving peripheral pockets, the collecting-trough located in front ofsaid drum, the flat spring upon which the rear of the trough rests, thecrank-arbor carrying the rear portion of the trough and journaled inbearings in the frame, the roller upon which the front portion of thetrough rests and is adapted to move, the hinged door, latch-hook, andengaging-stud, and the elevatingrope and hand crank, whereby the door isopened and the trongh raised and moved forward, substantially as and forthe purposes specified.

Signed at New York, in the county of New York and State of New York,this 16th day of December, A. D. 1891.

ANDREAS VOELKLE.

Witnesses:

JOSEPH MAYER, SAMUEL B. WRAY.

